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x(6x+1)=(2x-5)(3x+4)
We move all terms to the left:
x(6x+1)-((2x-5)(3x+4))=0
We multiply parentheses
6x^2+x-((2x-5)(3x+4))=0
We multiply parentheses ..
6x^2-((+6x^2+8x-15x-20))+x=0
We calculate terms in parentheses: -((+6x^2+8x-15x-20)), so:We add all the numbers together, and all the variables
(+6x^2+8x-15x-20)
We get rid of parentheses
6x^2+8x-15x-20
We add all the numbers together, and all the variables
6x^2-7x-20
Back to the equation:
-(6x^2-7x-20)
6x^2+x-(6x^2-7x-20)=0
We get rid of parentheses
6x^2-6x^2+x+7x+20=0
We add all the numbers together, and all the variables
8x+20=0
We move all terms containing x to the left, all other terms to the right
8x=-20
x=-20/8
x=-2+1/2
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